If you would like to expand DTS-Realtek to another device, use 'DTS Settings' (Settings and Utility). You may also need the additional registry guide below:
Usage: Edit the relevant .reg file, replacing {DEVICE-ID} with your chosen endpoint in both locations, save, double click, restart.
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Note, when I specify Realtek, you will be looking for DTS DCH instead with this driver pack.
I will use VAC as the endpoint to change (old images), open 'Regedit' and go to: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\MMDevices\Audio\Render
Find a Realtek 'HDAUDIO' device on the system (left side in Regedit), it can be any Realtek endpoint that says 'HDAUDIO', I used Realtek [Speakers].
Find and copy the value of [ {b3f8fa53-0004-438e-9003-51a46e139bfc},2 ] from [Speakers], replace the value on the [VAC] device.
Next, change [ {a45c254e-df1c-4efd-8020-67d146a850e0},24 ], to 'HDAUDIO' on the [VAC] device, then restart.
VAC with the two above changes + DTS Settings (also shows in the Realtek app).
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In some cases you might need additional permissions to edit the endpoint, use
ExecTI to run 'Regedit', then you can edit entries and import .reg files.
DTS note, to change modes when using 'stereo mode', you need the form factor external-internal speakers or headphones.
When no supported form factor is detected, multichannel is as normal, stereo is in default only mode.